Magnetic and/or electrostatic pivot
US-2015234361-A1 · Aug 20, 2015 · US
Magnetic device for pivoting an arbor of a rotating member in a timepiece movement
US9606509B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9606509-B2 |
| Application number | US-201615149639-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 9, 2016 |
| Priority date | Jun 16, 2015 |
| Publication date | Mar 28, 2017 |
| Grant date | Mar 28, 2017 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The device for pivoting an arbor of a rotating member, on a determined pivot axis, inside a timepiece movement includes at least one magnetic bearing including a magnet which exerts a force of attraction on a pivot made of magnetic material, of the arbor, and an endstone arranged between the magnet and the pivot, the endstone being formed of a material having a hardness greater than 500 HV and a friction coefficient less than or substantially equal to 0.1 with the material of which the pivot is made. The material forming the endstone has a high magnetic permeability and the endstone has, in cross-section to the pivot axis, smaller dimensions than those of the magnet, said endstone being arranged in the timepiece movement to be centred on the determined pivot axis.
First claim
Opening claim text (preview).
What is claimed is: 1. A timepiece assembly including the arbor of a rotating member and a device for pivoting said arbor about a determined pivot axis inside a timepiece movement, the pivoting device including at least one magnetic bearing including a magnet, which exerts a force of attraction on a pivot made of magnetic material, of the arbor, and an endstone arranged between the magnet and the pivot, the endstone being formed of a material having a hardness greater than 500 HV a…
Assignees
Inventors
Classifications
Physics · mapped topic
- G04B31/012Primary
Physics · mapped topic
Mechanical Engineering · mapped topic
- F16C32/0408Primary
Mechanical Engineering · mapped topic
- G04B31/02Primary
Physics · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9606509B2 cover?
- The device for pivoting an arbor of a rotating member, on a determined pivot axis, inside a timepiece movement includes at least one magnetic bearing including a magnet which exerts a force of attraction on a pivot made of magnetic material, of the arbor, and an endstone arranged between the magnet and the pivot, the endstone being formed of a material having a hardness greater than 500 HV and …
- Who is the assignee on this patent?
- Montres Breguet Sa
- What technology area does this patent fall under?
- Primary CPC classification G04B31/012. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 28 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).